National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Sweetgrass I-15 MP 395.3 (MTSWT)

Lat: 48.96017°NLon: 111.94071°WElev: 3471.0ft.

NA

67°F

19°C

Humidity 37%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 17 Aug 10:00 PM MDT
Extended Forecast for

10 Miles NW Sunburst MT

  • Tonight

    Tonight: Mostly clear, with a low around 53. West southwest wind around 7 mph.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 84. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West southwest wind 6 to 11 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. West southwest wind 6 to 9 mph becoming southeast in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Southwest wind 7 to 10 mph becoming west northwest in the evening.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 87. West wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. West northwest wind 10 to 17 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. North northwest wind 8 to 10 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 53. West southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 84. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 58. West southwest wind 6 to 11 mph.
Tuesday
Sunny, with a high near 90. West southwest wind 6 to 9 mph becoming southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Southwest wind 7 to 10 mph becoming west northwest in the evening.
Wednesday
Sunny, with a high near 87. West wind 9 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 52. West northwest wind 10 to 17 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 75. North northwest wind 8 to 10 mph.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NW Sunburst MT
 48.99°N 112.06°W (Elev. 3596 ft)
Last Update:
8:43 pm MDT Aug 17, 2025
Forecast Valid:
10pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation